Letter-copying machine.



No. 739,197. PATENTED SEPT. 15, 1903. E. J. MANKIEWIOZ.

' LETTER COPYING MAGHINE.

I APPLICATION FILED APR. 2| 1900. N0 MODEL. 5 SHEETS-BET 1.

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PATENTED SEPT. 15, 1903.

I No. 739,197.

E. J. MANKIEWIOZ. LETTER COPYING MACHINE.

APPLICATION FILED APR. 2. 1900.

5 SHEETS-SHEET 2.

NO MODEL.

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LETTER COPYING MACHINE.

APPLmAnoR FILED APR. 2. 1900.

' no MODEL.

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5 SHEETS-SHEET 3.

mihmooca gcuo UM No. 739,197. PATBNTED SEPT. 15, 1903. B. -J. MANKIEWIGZ. LETTER COPYING MACHINE.

APPLIOATION FILED APR. 2, 1900.

H0 MODEL.

5 SHEETS-SHEET 4.

PATENTED SEPT. 15 1903.

No. 739,197. E. J. MANKIEWIGZ.

LETTER COPYING MACHINE.

APPLICATION EILED APR. 2. 1900.

5 SHEETS-SHEET 5.

N0 MODEL.

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suw rm @677, J/Wanl/ew/cz w W a UNITE STATES Iatented September I5, 1903 PATENT OFFICE.

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$PECIFICATIQN forming part of Letters Patent N o. 739,197, dated September 15, 1903.

Application file d April 2, 1960. Serial No. 11',091. (No model.)

To all whom it may concern.-

Be it known that I, EUGEN J OHANNES MAN- KIEWICZ, merchant, a subject of theEmperor of Germany, a citizen of the free town of Hamburg, residing at 13-15 Great Backer; street, Hamburg, in the Empire of Germany,

In this copying-machine the novel feature consists in that a number of copies can be made in succession by means of this machine from an original letter and that this machine produces the copies without it being necessary to remove the original from the machine or to insert it again into the machine in makin g any one of the copies. When the latter has been inserted inthe machine,the machine produces a number of copies and automatically gives out the original again after the copies have been made. From this it will be seen that copies can be produced by means of this machine with considerable more rapidity than can be done with an earlier system in which only one impression can be made each time. Also as in an existing copying-machine this construction enables the front and back of a document to be copied togetherseveral times at one' operation, whereby a saving of time is effected, which constitutes a great advantage.

In the drawings, Figure 1 is a side elevation, partly in section, of the machine. Fig. 1 is a detail elevation of the rack-bar. Fig. 2 is an end-elevation of the upper part of the machine. Fig. 3 is a vertical section in the plane of the copy-roller. Fig. 4 is a nearly horizontal section in the plane of the cuttingoff device and the roll leading the paper.

thereto. Fig. 5 showsthe arrangement of a double apparatus. Fig. 6 is a detail plan view on a larger scale, some parts being omitted. Fig. 7 is the same view as Fig. 6, with the copying-rollers and some other parts relatingto the same removed. Fig. 8 is a crosssection on line W W of Fig. 6. Fig. 8 is a detail section taken on the plane indicated by the line so 00 of Fig. 8. Fig. 9 is a crosssection on line U U of Fig. 6. Fig. 10 is a cross-section through the copying-rollers, showing a brush-roller for separating the original from the copying-paper.

The construction of the machine is as follows:

In a framework w, comprising several stories, there are provided a number of separate compartments I II III,*according to the number (in this case three) of the copies to be made. Each compartment comprises a separate copying device. These copying devices have a constructionsimilar to that of the wellknown copying-machines, and the original letter 0 is inserted together with the copyingpaper 19 between two upper rollers a b, which are pressed together by means of a pressure device 0 c c and in this manner produce the transferring of the writing. The feeding of the flimsy or copying paper 19 to the rollers is effected in all three compartments I II III in the same manner, the paper which is wound off a roll'p being passed through a water-receptacle 7; under rollers Z and Z journaled near the bottom of the casing of said receptacle 1 and being led by means of a roller d :(which rolls above the roller coon the paper) in a definitely moistened state to the rollers a b.

The letter 0 to be copied is in the usual copying-machines inserted between the rollers a b of the top compartment I, and the process of toothed wheel 6, which gears with the teeth of a rack f, that can be moved up and down in avertical direction on the framing w. This rack f is also provided on the opposite side with teeth which cause the rollers a b to rotate by means of tooth-wheels g, as shown in compartment I, Fig. 1. In compartment II this tooth-wheel is omitted in order to show the gearing connection between the rollers a I), while in compartment III, Fig. 1, only a cross-section of these rollers a b is represented. The connection between each of these two rollersa b is effected by gears g and g onthe respective axles of said rollers, thus com-pelling them to rotate in opposite directions.

At the commencement of the copyingthe rack f is situated in its topmost position and the rotating toothed wheel 6 moves the rack f downwardly. At the same time the rollers a I) (being driven by the rack f and by means ing-paper 1) is led over a roller 7c to a traveling support h, which has the form of an endless belt. These endless belts It may consist of any suitable fabric-for instance, of linen the width of the apparatus for supporting and carrying the copy-paper. B y further revolution of the tooth-wheel c and thedownward movement of the rack f the teeth of the latter gear with the tooth-wheel, which rotates the copying-rollers a b in compartment II, with the result that the original letter 0, which is also inserted 110w in the rollers of compartment II, comes together with the copyingpaper p and in intimate contact therewith between the rollers a I) of the same compartment. This transferring of the original paper may be secured by suitable stripping means and slides, which are arranged to grip the paper immediately after leaving the rollers a I), while its adhering to the moist paper 19 may be prevented by means of an elastic bar 4;, Fig. 8, or oppositely-moving roll 0 Fig. 10, pressed against the roller a just below the point where the original paper comes out between both rollers a and Z), this roll r being operated by means of chain 1' and chainwheels 1 v on the respective axles with a suitable speed. Here the production of a copy of the original is effected in exactly the same manner as in the top compartment I. The original, which has now been copied for the second time, is again led farther down in a vertical direction, as before, while the paper 1), which is provided with the copy, is led over a roller 7a to a traveling support h in the same manner as in compartment I. The same result as in compartments I and II is produced when the original letter is passed between the rollers a b of compartment III. The original, which has now been copied for the third time between these rollers, is passed out of the machine and the third copy is conveyed onto the endless belt h of the compartment Ill, (be. The operation of these endless belts 7L may be effected by means of chainwheels and and connecting-chains 7L2, leading from the rollers 75, driven by the rollers a, to the upper rollers h of the supporting devices, enabling the copy which is made to be led out of the machine by the downward movement of the toothed rack before inserting a fresh document.

The pressing devices a c 0 which are employed for adjusting the rollers a Z), are connected together by a connecting-rod 0 which extends downwardly through part c of the framing 10. By means of nuts c c a provided on the rod 0 each pressing device can be adjusted separately, while by shifting the rod 0 through the medium of the thumb-nut c' a common and exact adjustment of all the devices can be effeetedas, for example,when sheets of paper of greater or less thickness are employed as originals. The rack f, which has an extent of toothed edge (on the side designed for driving the rollers a 1)) equal to the length of the original letter, which will not be able to rotate the rollers any longer after it has completely rolled over the toothed wheels g. Therefore when a copy has been made the teeth of the rack f cease and the copying devices are then stoppedat once. In order also to insure the possibility of cansing the copies made on the copying-paper to leavethe machine in a definite, length there is provided in each compartment a cutting device which acts at once when the toothed rack leaves the tooth-Wheels 9, that serve to rotate the rollers a I). For this purpose on the rack f there is arranged a second rack Z, which immediately after the stoppage of the copying-rolls through the medium of gears n a n operates wheel-gearing n, that transmits the motion to a spindle m, on which slides a support q, that is guided along a rod I'.

On the support q there is elastically mounted a rotating cutting-roller s, which presses against the roller L, that is situated underneath the roller a and which serves for cutting the moistened paper that is led over the roller. On the ascent of the rack f the rack Z rotates the wheel-gearing it again and conveys the support q, together with the cuttingroller .9, back to the opposite side. In order to allow also of making a smaller number of copies, the copying devices of the compartments II and III are arranged to be thrown out of operation. This is done by the means shown in Fig. 3, in which the toothed wheel g, which is driven by the rack f, is coupled to a ratchet-wheel t, which rotates the roller through the medium of a ratchet hook orpawl If, that is fixed on the toothed wheel of the roller.

In orderto make a smaller number of copies than there are compartments, one or the other toothed wheels g is shifted outward, with the result that the copying-rollers do not revolve, and therefore no copy is made in these said compartments. The arrangement of the ratchet-wheel t, as also of the pawl t, is provided for the reason that the rollers shall not rotate during the ascent of the rack f, so that only the downward movement of the rack shall produce a revolution of the copyingrollers a b. This pawl t is pivoted to the gear 9, fastened on the shaft of the roller a and gearing with the tooth wheel on the shaft of the opposite roller 71. The gears g, operated by the rack f and the ratchet-wheel z, are loosely mounted on the same shaft as the gear g and connected with each other by means of a clutch-coupling. In moving the rack f downwardly a rotation of the rollers a b results, while in the upward movement said rollers cannot rotate, as the pawl t slides IIC loosely over the teeth of the rotating ratehet- Wheel 25. On shifting the looselymounted gear g along its shaft no revolution of the rollers a b will occur, thus allowing each system I II III to work separately.

For the purpose of copying letter-sheets of large size the rack f is made capable of being extended by means of a toothed rack exten sion-piece f, which is inserted in a groove and is pushed down against the teeth of the rack f when letter-sheets of large size are employed. For this purpose also the rack Z is made adjustable or movable on the rack f in order that the cutting device shall come later into operation when sheets of large size are employed.

By arranging side by side the copying compartments, which in this system are arranged above one another, the construction would be altered in a corresponding manner; but in such a case also the principle would still be retained-namely, that the document is conveyed from one compartment to another and that the copies are taken out separately from each compartment. By means of the whole arrangement of this system it is possible to print copies from a document written upon.

both sides. This is effected in a simple manner, as illustrated by Fig. 5, in which a double arrangement is employed, necessitating the provision of a second series of rolls of copyingpaper, receptacles 'i, rollers 70, and supports h. The principle of the invention is, however, not departed from by this arrangement, because in this instance the mode of operation remains the same, only both ofeach pair of copying-rollers. a and I) serve for leading the copying-paper while the original paper passes from top to bottom, as indicated by line 0 in Fig, 5. It will be understood that in this form of the invention the rack will be provided with teeth on opposite sides.

What I claim, and desire tosecure by Letters Patent, is

1. In a copying-machine, the combination with a plurality of copying-devices arranged one above another, and each comprising a paper-roll, a water-receptacle, copying-rolls and, means for carrying the copy-paper through the water-receptacle to the copyingrolls, of a rack and means for operating same, gears operated by said rack, and operating the copy-rolls, and stripping means and slides, these devices being so mounted as to cause the paper to be copied to pass automatically from one apparatus to the other, While the copy is carried away separately.

2. Ina copying-machine, the combination with a plurality of copying devices arranged one above another, and each comprising a paper-roll, a Water-receptacle, copying-rolls and means to carry the original paper through the water-receptacle to the copying-rolls, of a rack and means to operate the same, gears operated by said rack and operating the copyrolls, said elements being constructed and arranged to cause the original paper to pass automatically from one apparatus to the other, and to deliver the copies separately, and means to disconnect the copy-rolls fromrthe rack during the reverse strokes of the latter, substantially as described.

3. In a copying-machine, the combination with a plurality of copying devices arranged one above another, and each comprising a paper-roll, a water-receptacle, copying-rolls and means to carry the original paper through the Water-receptacle to the copying-rolls, of a rack and means to operate the same, gears operated by said rack and operating the copyrolls, said elements being constructed and arranged to cause the original paper to pass automatically from one apparatus to the other and to deliver the copies separately, during one stroke of the rack,means to disengage said copy-rolls from the rack, and means to prevent rotation of the copy-rolls during the reverse stroke of the rack, substantially as described.

4:. In a copying-machine, the combination of an actuating element with a plurality of copying elements successively actuated thereby and means to independently disengage the copying elements therefrom, substantially as described.

5. In a copying-machine, the combination with a reciprocating element having a rack, of a plurality of copying mechanisms, .each having a gear, said gears being successively engaged by said rack, at one stroke thereof, and means to prevent movement of the copying mechanisms during the reverse stroke of the rack, substantially as described.

.6. In combination with copying-rolls, means to feed copy-paper and an original thereto simultaneously, means to separate the copypaper from the original paper at a point beyond the rolls, and meansto separately deliver the copy-paper, substantially as described.

In witness whereof I subscribe my signature in presence of two witnesses.

EUGEN JOIIANNES MANKIEWICZ.

Witnesses:

G. HAUSOHILDT, E. H. L. MUMMENHOFF. 

